calculate the molecular formula of a compound made up of 85.7%c and 14.3% H the molecular mass of compound is 28

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Why are the trends and exceptions to the trends in ionization energy observed?

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?